An anti-shelling and non-combustible thermal insulation system for aircraft testing

Abstract

The invention provides an anti-shelling and non-combustible heat preservation system for aircraft testing, which belongs to the technical field of aircraft testing. The thermal insulation system is formed by splicing a plurality of thermal insulation storage boards, and the thermal insulation storage board includes an inner panel, an outer panel, a fastening frame for connecting the inner panel and the outer panel and forming a thermal insulation cavity, and a thermal insulation core arranged in the thermal insulation cavity. In the automatic production process, the inner panel can be placed in the lower position of the production line, which significantly improves the bonding strength between the inner panel and the thermal insulation core material. In the inner panel, the insulation core material is reinforced by reinforcing fasteners, which can further increase the bonding strength between the inner panel and the insulation core material, and avoid shelling of the insulation core material.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, in particular to an anti-shelling and non-combustible thermal insulation system for aircraft testing. Background technique [0002] Aircraft testing refers to subjecting the aircraft to the effects of climatic environmental stress under indoor simulation or outdoor natural climatic conditions, so as to obtain information on the extreme ability of the aircraft to withstand the climatic environment, and adapt to the climatic environment of the aircraft according to the development requirements, failure criteria and test data. Comprehensive evaluation is carried out to determine the degree to which the aircraft's climatic and environmental adaptability meets the requirements. [0003] As a large-scale carrying facility equipped with environmental tests, the climate laboratory can accommodate full-size aircraft and provide all-weather, time-limited high temperature, low temperature, rain, sn...

AI Technical Summary

Problems solved by technology

[0004] Insulation storage panels are usually composed of inner panels, outer panels, core materials and embedded connectors. Currently, non-combustible insulation storage panels in climate laboratories used for aircraft testing generally have low bonding strength between inner panels and core materials. However, the problem of shelling occurred, resulting in a very low service life of the insulation storage board

The reasons for the shelling of non-combustible thermal insulation panels come from three aspects: First, the core material of non-combustible thermal insulation panels is PIR material, and the bonding strength between this material and the metal panel is higher than that of PUR core materials used in flammable and flame-retardant thermal insulation panels. The bonding strength of the metal panel is low; secondly, although the bonding strength between the PIR material and the metal panel can be improved by increasing the contact pressure between the PIR material and the metal panel during the production process of the thermal insulation storage panel, the pre-embedded method used for the broken cold bridge The connection method is limited, and it cannot realize automatic production; third, the thermal insulation board used in the high and low temperature environmental chamber and climate laboratory, the inner panel is in a harsh environment, and stainless steel is usually used, and the bonding strength of PIR material and stainless steel lower

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